I set this puzzle last Christmas for my sister. I decided to solve it again this season and I realized I should probably publish it! Additionally, since I set it for a family member I wrote hints for it, so these are included below the puzzle. Hopefully you enjoy it as much as I do. Happy Holidays :)
Rules:
Normal Sudoku rules apply.
Digits in killer cages sum to the given total without repetition.
Colours are just for fun.
Solve online with colours at SudokuPad
Solve online without colours at SudokuPad
Hints:
Break-in hint 1: 1+2+3+4+5+6+7+8+9 = 45, so what do the non-23 cage cells in boxes 1 and 6 sum to?
Break-in hint 2: A 3-cell sum to 22 always contains a 9. How many 9s are in columns 2 and 3?
Break-in hint 3: Can both 3-cell 22 sums in columns 2 and 3 have 5s now?
Mid-solve hint 1: What does the 3-cell 15 cage look like? What about the 3-cell 11 cage?
Mid-solve hint 2: How does that impact the 4-cell 22 sum? How does that now impact box 6 or column 3?
Mid-solve hint 3: Do those 8 and 11 cages now bother row 4?
Mid-solve hint 4: Where does 7 go in box 5? Now box 2? What does that do to the three cells in box 1 that sum to 22? What does that mean for the 13 cage? What low digit is now required to make 13 work?
End-solve hint 1: Where does 2 go in row 9? Where does 1 go in row 9? Where does 4 go in row 9?
End-solve hint 2: Now consider where the digits 6/7/8/9 go in box 8?
End-solve hint 3: Where does 9 go in row 7?
End-solve hint 4: Where does 7 go in row 7?
If you enjoyed this puzzle, consider leaving a rating and comment or better yet recommend it to your fellow solvers! I hope you do so for all the puzzles you enjoy ;)
I have a YouTube channel where we discuss puzzles and setting them. Including interviews of Phistomefel, Qodec, twototenth, and many more.
Solution code: Row 9 (left to right, 9 digits, no spaces)
on 22. December 2025, 02:10 by AngusWBA
Gorgeous puzzle, thanks!
on 21. December 2025, 23:03 by purpl
Removed random text in puzzle description.
on 21. December 2025, 23:01 by purpl
Added to mid-solve hint 4 at the request of solvers.
on 21. December 2025, 22:40 by Myxo
Cute!